printf("EM style slippery gems: %s\n", (level->em_slippery_gems ? "yes" : "no"));
printf("Player blocks last field: %s\n", (level->block_last_field ? "yes" : "no"));
printf("SP player blocks last field: %s\n", (level->sp_block_last_field ? "yes" : "no"));
printf("EM style slippery gems: %s\n", (level->em_slippery_gems ? "yes" : "no"));
printf("Player blocks last field: %s\n", (level->block_last_field ? "yes" : "no"));
printf("SP player blocks last field: %s\n", (level->sp_block_last_field ? "yes" : "no"));